Can-soldering machine



June 7 1927.

W. J. LUXTON ET AL CAN SOLDERING MACHINE Filed Dec. 16, 1926 5 Sheets-Sheet 1 v VE'JYTOE s l 31 424 June 7,1927. w. J! LUXTON ET AL v f )I CAN SOLDERINGIMACHINE' I Filed Dc. 16. 1926 :5 Sheets-Shgt 2 1927. 1,631 424 June 7 w. J. LUXTON ET AL cm SOLDERING momma Filed Dec. 16, 1926 s Sheets-Sheet 3 l0 travel across the machine, are toppled from Patented June 7, 192.76

wILriIAivr mini ise Ann- WIILLYVIAM entree annals; of tonnon; :7

l :camsonnnnme MACHINE r Applicationifi led December s, 92 sen-a1 Newman and in Great Britain new 20, 1925.

r [This invention relates to. can-soldering machines V wherein cans are. moved iacross vaj- V j. fr ameworlr with their peripheral edge 1 or other seain tobe soldered dipping successive lyi'n or travelling on top of flux and solder i t J troughs or slots. In some machines circuj lar section cans are rolledalong the jframework whilst they are canted so thatther lower edge runs' vin the troughs, and other machinescans'of prismatic section; as they one flat side to another, so-tliat. the edges the o'pen baths of flux Other machines are of the type wherein the seam travels along the dip in sequence into top of asolder slot where a fine elongated bead of. solder is applied to the searn by capillary attractiony Asexamples of the fore- "20. our prior British specifications Nos.195,129

going machines which we have in mind, there might be mentioned those described in and-215,233, and in Gillies and anothers'l I British specificationsNosf15,227 and 17 ,7 62 both of 1915. 3

'The present invention has for itsobject to provideimproved meanstorieeding niol ten solder to the solder trough. It relates to the type of device (as Gilkes patents) I wherein an oscillatingladle ordipper lifts solder from low-level supply well. to a high-level well associated with a level-adjusting valve whereby the level ot theliigh "well is maintained at a requisite height corsistance,

' countered.

responding with the required level-in the slot whichis fed from the.

overflows back into the low we'll", 7 According to the said-invention; the pivg I oted rocking arms which carry the oscillating" ladles are connected by alooseconnection to an operatingelement (e. g. a connecting rod attached to and actuated by a crank) whereby the said operating element moves the rocking arms under normal working conditions, .but rides vtree of the former when abnormal re 7 as will be explained later, is en- 'The accompanying drawingsshow a mode of executiong c by way 'of example, and in said drawings'z 1,

. Figure 1 is a front elevation; i f Figure2 is a plan; g: 'FigureB is'anend viewg and,

J t .Figure 4 is an enlarged cross-sectionof the solder or flux bead.-

The machine" comprises a stand having 1 with flux from the 'leit-hai dfbeader the same "manner, teat-he ba s" roll 'along; The belt frame's lgfl are'raised andloweifed by, the'lia1i'clewheel, 17,'operatingtheraising c c and lowering racked rods 18 (Figuresl and 3) through suitable. gearing. I 7 i-rccording'to-the embodiment (see Figure I 100 formed with an independ'ent f 20 constituting the;high-level, I The oscillating ladle 2l-is 'fiXedly mounted, ona'rocking arm orlever 22. The a latter I (22) i'spivote'd on the exterior; of the: -.fcasting;t0 v wing in a verticalvplaneyandits upper extremity i's 'right-angularly or'otherwell.

a substantially jhorizontal bed with afr ontfi track 2 and a rear track 3 along which the cans are rolled. The end of. the. can-rests I against they-front track 2 whilstthe'periph eral edge or any otherintermediat'e .seam'o'n the cylindrical can runs along the mouth of,

the bead-forming device 4; (Figure 4) 1whifch extends longitudinallyalongthe machine and f 7 is in connection withxthe trough-or: slot'18.

Theback tracli3 can be'moved near to. oraway r trom. the front track 2accordingto thelength I ofcani This movement is effected by rotating the hand-wheel. 5',whic h rotates the threaded shafts 6, throughbevel gearslin the gear boxes 7', see Figure 2. The beading device Y .4 is, in two separate "sections, onepart on the entry sidef (left of Figures 1: and-2) l i studs 12. a V M c The cans are i 'caused to" travel acros's'fthe tracks 2 and3 andalong the'mouth of the athe teeclingslot for beading device l (Figure 1 a) are removably fitted a elongate'dfhangle bars "10 and Ill held by by clamping lugs or 1" slot of the beading device 4v by a travelling band 13 carriedby end frameworksfld, 14

supported by. parallel l inltage 15 whereby the belt 13 can be raised or loweredacjcord mg to the diameter of "the" cans;

solder inlth'e' feeding slot got the beading fidevice 4 forms beadjwhiolfis conveyed tothe 'cansea-ms byncapillary ate traction, after"the same have "been c' 1), the low-level wellll9 isfprefera-bly; a metal casting compartment a a a .7, Lesser. jockey rollers 1'6 pressthe-band' down. [The wise bentinwards at'23 tooverhangtheopen I top ofthedouble;well1c asting 1920." In

.the vertical position f (or substantially so)" the 0vei'hangpart 23'is"above 'the highvwelll; 20,wh ilst-in the inclined position, say down channelled body of the ladle open at the end 25 near the overhanging part 23 of the rock- Wards to about 4:5 degrees as illustrated, the

overhanging part 28 clears thehigh Well and is above the low vvell 19. On said overhanging part isfixed a ladle or dipper 21 extending downwards and inclined outwai .s from the said part 23, so that as the'rocking arm 2 2 leave3 the vertical, the ladle 21 is plunged into the solder at the low Well 19,

and as it approaches the vertical the ladle o't' solderis emptied into the high Well The 'ladleis preferably shaped with a hollowed hookedtoe 24, the hollowed toe leading to a ing arm, so that the solder flows from the scoop. or hooked toe 24 along the channel to of Figures 1 and 2, 55 that the feed is douhie-acting, one side emptying Whilst the other is dipping.

The foregoing applies to the flux supply as well as to the solder supply. It forms a feature 01" the said invention "that the following fool-proof lnode ot actu- That is to say, the invention takes into account the fact that the ation is employed.

- machine maybe started up whilst the solder in, the low-level Well or Wells 19'is set hard With or Without the ladle 21 being fixedly was left overnight.

'10vv tor such a cont ngency, 1t 18' probable embedded therein according asthe machine lVit-hout means to althat oneor other of the components would fracture.

, The rocker arm 22, and consequently the i Y ladle or ladles are operated as tollo\vs:

I There may be one ladle device for the solder supply and one for the fiux. "both rocker armsare 1o1ned together by' a The tails 26 of flat bar 27 extending horizontally across the Them of the machine and pivoted at each end 7 Q to saidtails E26. This .baris reciprocated' by means ofa connecting rod 28 extendingtrom suitable point intermediate of the length of the bar 27 to" acrank or equivalent 29 at one side of the mach ne actuated by suitable gear abnormal resistance.

neeneaa from a shatt of the gearing employed to Work the travelling mechanism tor the cans. The o1nt of the connecting rod 28 to the said horizontal; bar 27 is a loose pivot- 30.

That is to say, a pivot stud, pin, roller or equivalent 31 carried by an extension of the connecting rod loosely drops into a halt- Q longitudinal y, and recessing one of the edges ofthe slot'vto accommodate the pivot stud 31.

'lVe claims-j '1. a can soldering machineot the type Wherein'solder is elevated from a low Well to a 'highWell, 'a plurality otladle devices for 7 lilting thQ'SOltlGl from jalow Well to a high vvell, aiv oted arms carrying said ladle de vices, a reciprocable member connecting said ai ins a reciprocating connecting-rod and a loose connection between said rod and said member whereby the latter is moved by the former under normal Working condit-ions,- but rides tree thereof When abnormal resistance is encountered by the ladles. 2. In can sadering machines'oi thetype 8 set. forth, the combination 0tpivotedrock ing arms,vladles carried by said'arms, a bar connecting the ends of said rockingarins opposite the ladies and an actuating rod for said bar operated by a crank, a'inembercarried by said connecting rodand engaging in a depression in said bar to normally connect the rod and bar by permitting theni to move separately Whenthe ladies encounter In testimonylwhereof Weihaveafiixed our signatures hereto this 22nd day of Novena ber, 1926. V p

"WILLIAM. Anise; GREEN. 'WILLIAMJOHNLUXTOIL c 

